Binder mechanism



Aug. 24, 1948. J. SCHADE 2,447,775

BINDER MECHANISM Filed July 15, 1944 2 Sheets-Sheet 1 INVENTOR (/OH/V 601/405 BY (ff/2 g ATTORNEYS Aug. 24, 1948. J. SCHADE BINDER MECHANISM 2 Sheets-Sheet 2 Filed July 15, 1944 INVENTOR Jaw/v 5C/1ADE Patented Aug. 24, 1948 Jenms'ehaae;min .Mmea smtomatm er Blan s B Qmnenr-s; Remake Mass? owv e we s t ewh m e el r ieml lri :,ee s 5-ee ee1 invention relates 110 40089, leafibinderg construction. It is= an= improvem=ent ofithezconstrum tionshown in m y PatentF=#t2i'320,1:02 01%943: Such patent shows the nearest prion art knowmtoJ-ner The purpose; anther-improvem nt. is toeproviQ-e a better: mechanism, one; more zconyenientijornthe user; tnr'operatatherwbindern The construption imisaidipatentyfShOWsat-hfi two+part back pan providecliwitira-clutche; It operates antorn'atically tm permit; movement for-*ove llappingi the; pacit, panels to amincreasingg degree and; to; prevent separation toianmdegreeu thflefilutqh ifiemfiflu allm set-out et; clutching position ii' corrveniencez in, 7711951911015" structure; is: its. requirement, that-the user n-iustanotonly setg the clutch on of; clutching: position :but 311 9: neset-.it-' to clutch ng. p sit n i-sep r te d; a he; latter is not.understoodi on forgotten. byrtheseig heimeets a'diili'culty Or inconvenience; He most figlltpgOl-lbZWhflhthE- trouble iston give; more attentiom p h on mwn han s es e e mmi the din rrr si ta d nt;

h na ie ar the; aredisclosew in the: drawings and -description lqshowsiagiplanwiew;

Elie. 2'. shows an; end; views Ofij the v asssembled; bindep' in :v commerciale form; but; witheccvers; cut;- away. tosave space;

Fig; 3 ds. detaili-viewsimplamshowing narts or the, back; panel: the clatcln mechanism- I with-l the, top; wall: ofrits. casing: removed,-. the center ppst re moved;..and=tlie partszawhich operat in relation; tmthe: clutch:.;sovas to better considererthwwayiof operatlngi-zthenmechanism 1 EiQSi: 45 and: 5:; ace; detail: views: on pants: on a; toggleamechanismzzandr Fig. 6 is a section on line 6-6 of Fig. 3.

'I'lieibitrder, apart. from the clutch mechanism, is shown as consisting in covers and 2 with hinged flanges a 'and 4t Tha latter -overlie and arerfastenedtto upstanding flanges hand figon the back panel parts of metal. 'i herpack panel is made of sheet. Inetalplates. li eanm m one overlapping the other. They are adaptedto slide transversely-oh the back to adjiisttffor binder \ver margins B -and Hibent over to pr'pvid grooves} Thegend-margins-of l"t 0 area 91; to enter" and be guided" by" thesegroovesg H tongue II on the grooved margin I0 is used in an operation for the clutch, as will be explained. The flanges 5 and 6 are integral with plates 1 and 8 respectively and the portions 9 and HI are bent portions of plate I. It is clear that the memre i ens n e t l is cover parts aimifithe back: panetzparts are the? easlly'cmistructw:inexpensive-hind..

The flange has fastened-i om iti I arrangediposc near its top? edge: Flange lfilias xtwo spaced posts fastened on it injn positions-1.1

shown:- The; 'Slatetnhasmwcnouom postszifastenemmit adapted to telescope on the-twoipcsts of flange- 6& The idea '5 to ta'ke a paclcoifsheets orgronp or:catalbgsioirtheposts omflanges mandifi butli'eld assemhled on the hollow posts of plate:- wz tlie 'latter heing entireim and easily: emote able. Thearrangenientis generallyfort the: ame" urpcse azs immy sai'rirpatentt Little outstzrndr; ine 'tcneues Wendi out of flange 51am: imposition-L tc-abutith eendsiof postseomiiangel" 8;. enter-ing the hollowposts. It; isiorrkeepingtaligm' merit and-tow avoixitcanting. crfplate .Siae it jpush'ese ompl'ate up:-to' ttre "limit.

Centrally: ofi plate Eithere is a clutclia mechaenismi havingrcasi ngt Ni -It'-. clutnlies 'onzxtos the flatt.

pron lastenedt'ontflangefi when-:the plates tend: twslideaaparti Asimsaiii priori'patenh the'r idea: is tmpermititha sliding ofrtheplates-together amliito prevent theme by: thermlutchaction, slide in'gaaapagrti Thef'fclllt'filll can be manually; se" to? permiti plates; 1.: and: 8's tm slide: apart. whenr e? sired: 'llhemechanisms im the: clutch-casing; l5? mwy besubstantiam' the same astham showneim: said prior patent except for the device'totmae nibulater the clntclrz filldi'SEl'iLiti. in;- one position; or

the-father; that; is? to grip prong; H5 or toibe in: releasing: position: witlii respect; to prong-a I 12 The clutch mechanism": and"; actuating means. fomitlis' best shown imEigt; Itsmasin'g l 6 is one 5* fiat stripe aiflang eiupstanding ,for. fastening:

toi-ilhng'egettthem extendingrthe width of? plate then bent: slightly, upward and; bacle. upon. itselfi fdn 'theztoprwalllseemimEige 1r; 'fihis-atopiwallrist cut away in Fig. 3. A narrow trough-like casingm opfeir on thiiee' sidesa-iethus'r pnovidedzx. considering the troiigth' as" lyi-n mitsaside bwhen-ipositioncchasi 11 18551 @flerminggthmbottom:ofithe: hasiam openingi tosadmitr rcngrHi The:

all? liaislien't dbwm spacer; ears to; serve ast.

a ticttomiwalls aiprvoti ih: llitcarriesia fiat'. 2mm 15". It; generally. underlies. prong; Iiibut;is;providedwith twciiprongelikenarms? 28.5 and? H BenU upWarclimenou'g tontheir endsztofengagflli 55 move it to such position. But when prong I1 is an cemtim li harder prongll 'is pulled outwardly the more.

the cramping effect is. This will be seen by comparing the full and dotted line positions of lever I9 in Fig. 3 or considerin the disclosure and description of said patent. arms 20 and 2| is for letting prong I1 pass, when in the full line position.

between the ends of said arms is longer than the width of the prong and there is cramping, as

lever arm l9 moves toward the dotted full line position. In Fig. 3 the dotted tion generally indicates the condition when prong IT has been removed. The cramping action, to give the clutch function, occurs before the dotted line'position is reached. So far as explained the clutch action is substantially the same as in the prior patent. r Y

The means to-setthe clutch will now be de scribed. It is different from the meansin' the combination of the prior patent. Slidably resting on the bottom of the trough provided bypasing 16 is the cam shaped end of a lever 23, see Figs. 3 and 5. The cam face 24 is movable between the full and dotted. positions of. Fig. 3. In the former it holds lever arm I!) in position to permit prong I! to be removed from the clutch without binding. The adjacent corner of arml9 rests, with its spring pressure, on cam 24 as from the astop for such position. In the dotted lineposi-a tion cam 24 permits arm 19 to occupy its dotted line position or tend in that direction. This is the'position setting the clutch in condition to receive prong IT in a one-way movement, an

inward movement through the clutch casing. and toprevent an outward movement. Cam 24 is moved between or conditioned for its two functioning positions above stated, by moving lever 23 back and forth. And the lever 23 is part of a toggle mechanism to lock the cam 24 according to the toggle lock principle, in one position .or the other. a

This toggle mechanism consists. inv lever 23, pivoted to bell crank lever'25 at 26. Lever 25 is pivoted to plate 8 at 29. It is movable between stops 2'? and 28 provided as ears turned up from plate 8.- With lever 23 resting at one end on the bottom of the casing trough, spring pressed by arm f9 bearingon cam 24, the toggle mechanism is spring pressed toward either stop 21 or 28. 'It can be moved between stops by finger piece 3-0, see Fig. 4.

Considering the full line toggle position of Fig. 3, assume that the binder halves are pulled apart to fully separate plates I and 8 in the back por' tion. It will be seen that the ear H on the margin of plate 1 as it travels transversely of plate 8 will strike ear 3| on bell crank lever 25. This ear will be moved enough to move the toggle mechanism, for pivot 26 to cross the line between the outer bearing point of lever 23 and pivot 29. Then being spring pressed the toggle mechanism will move from Fig. 3.

full to dotted line positions, see

The spacing between,

When in dotted line position. the diagonal direction" across the prong The operation just described results in an automatic resetting of the clutch in preparation for a reassembly of the binder halves. For example, when the user moves finger piece 30 to unclutch the binder halves, and then pulls them apart he does not need to remember to reset the clutch mechanism when he reassembles the binder halves. is' so'because the action. of separating plates 1 and 8 results in resetting the clutch mechanism as just above described. This actuator for the clutch and its mode of operation adds-areal improvement in the operation of a binder such as shown. Everyone easily understands that the finger" piece 3| is used to unlock the"-'binder' for separation. But one will frequently forget or'no't readily see the necessity of vand .how toreset the mechanism when con- .60 across their toggle center line, and a mechanical structed as in my prior patent. Confusion then follows. But with the automatic operation of resetting as in the combination now disclosed, no confusion occurs in the full cycle of separating and reassembling the binder halves.

Having disclosed an improvement in the binder construction, I claim:

In a loose leaf binder construction ofthe kind employingoverlapping parts in the back-panel to adjust for binder thickness and a oneway spring clutch mounted on the middle portion of one of said overlapping parts, said clutch being adapted to cooperate with a prong carried by the other overlapping part toreleasably hold suchbinder parts in assembled position; the combination of a toggle mechanism mounted on'said part carrying the clutch, said toggle mechanism extending from a position of adjacency to the spring clutch outwardly to one end of the binder back and comprising an inner lever having a wedge surface'at its inner end formed to engage and release said spring clutch' 'from its coop'e'rating prong when said lever is moved to one of its toggle positionsfand an outer lever pivotally connected to the outer end of the first lever andextending to the adjacent end of the binder back said outer lever'being pivotally mounted between its ends on the clutch-carrying overlapping part, said outer lever cooperating to move andhold said first lever in clutch release position by toggle action when said outer lever is swung by hand to bring the pivotally connected ends of the levers finger mounted on that one of said overlapping parts not carrying the clutch in the back panel, said finger being positioned to engage the outer toggle lever and operate said toggle mechanism to withdraw the first lever from its clutch release position as the clutch. r

l JOHN SCHADE.

REFERENCES CITED file of this patent: I

UNITED STATES PATENTS The following references are of record in the Schade May 25,1943

prong is drawn free of the spring Datev 

